S-91700A190 8-32 x 1/4" ASME B18.6.3 Brass Slotted Oval Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass material, ideal for harsh environments and extending service life
• Excellent tensile strength of 50,000 psi ensures reliable, durable fastening under significant mechanical stress
• Rockwell B50 hardness provides optimal balance of strength and machinability, resisting wear and deformation
• Class 2A thread fit with 8-32 UNC coarse threading offers easy installation and secure holding power in various materials
• Undercut oval head design allows for a flush, low-profile finish, enhancing aesthetics and safety in assembled products
• Full compliance with ASME B18.6.3, RoHS 3, and REACH guarantees adherence to strict industrial safety and environmental standards
• Slotted drive style enables simple, tool-friendly installation and removal with standard screwdrivers

Professional Applications & Engineering Value

This 8-32 UNC brass oval head slotted screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and assembly efficiency. The brass material inherently resists rust and galvanic corrosion, making it perfect for electrical components, marine hardware, and plumbing systems where moisture exposure is a concern. Its coarse UNC threading and Class 2A thread fit provide quick, secure engagement in softer materials or pre-tapped holes, reducing installation time and minimizing cross-threading risks. The undercut oval head sits flush with surfaces, preventing snagging and offering a clean finish in visible applications. Combined with a slotted drive for easy manual or automated driving, this screw delivers reliable performance in machinery, consumer electronics, and automotive assemblies, ensuring long-term fastening integrity without frequent maintenance.

Specification Summary & Compliance

This screw features precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy and interchangeability. It meets ASME B18.6.3 specifications for mechanical fasteners, guaranteeing consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for various industrial and consumer applications. Key dimensions include a 1/4" length, 8-32 thread size, and 82° countersink angle for proper seating in countersunk holes.